replace all occurrences in string using javascript

Question

I have this string:

"dsfnsdfksh[aa]lkdfjldfjgljd[aa]"

I need to find all occurrencies of [aa] and replace it by another string, for example: dd

How can I do that?

Answer 1

You can use a regex with the g flag. Note that you will have to escape the [ and ] with \\

 //somewhere at the top of the script if (!RegExp.escape) { RegExp.escape = function(value) { return value.replace(/[\\-\\[\\]{}()*+?.,\\\\\\^$|#\\s]/g, "\\\\$&") }; } var string = "dsfnsdfksh[aa]lkdfjldfjgljd[aa]"; var pattern = '[aa]'; var regex = new RegExp(RegExp.escape(pattern), 'g'); var text = string.replace(regex, 'dd'); console.log(text)

Answer 2

You can use .replace for this. Here is an example:

HTML

<!DOCTYPE Html />
<html>
    <head>
        <title></title>
    </head>
    <body>
        <input type="text" id="theInput" />

        <input type="submit" value="replace" id="btnReplace"/>

        <script type="text/javascript" src="theJS.js"></script>
    </body>
</html>

JavaScript

var fieldInput = document.getElementById("theInput");
var theButton = document.getElementById("btnReplace");

theButton.onclick = function () {
    var originalValue = fieldInput.value;
    var resultValue = originalValue.replace(/\[aa\]/g, "REPLACEMENT");
    fieldInput.value = resultValue;
}

Answer 3

With this I can replace all occurrencies:

var pattern = '[aa]';
var string = "dsfnsdfksh[aa]lkdfjldfjgljd[aa]";

var text = string.replace(new RegExp(pattern.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&'), 'g'), 'dd');

console.log(text);

replace all occurrences in string using javascript

Question

3 answers

solution1
2 2015-04-24 01:19:30

solution2
0 2015-04-24 01:21:45

solution3
0 2015-04-24 01:46:48

replace all occurrences in string using javascript

Question

3 answers

solution1 2 2015-04-24 01:19:30

solution2 0 2015-04-24 01:21:45

solution3 0 2015-04-24 01:46:48

solution1
2 2015-04-24 01:19:30

solution2
0 2015-04-24 01:21:45

solution3
0 2015-04-24 01:46:48